Found a press release, all I heard was "Berry axed" on the radio tonight.
Berry not sacked, just stood down.
http://superxv.com/41941/1/super-rugby-referees-stood-down-by-sanzar#.Uy_rRfm1ZCQ
Berry, Gardner, Lees and O'Brien stood down for a few rounds.
South African Lourens van der Merwe, Argentine Francisco Pastrana and Australian James Leckie all cut from the roster completely.
They are down to 14 refs after cutting 3 and losing another to injury. 14 refs is fairly bare boned when 7 need to start every week.
edit: with the extra four who have been stood down, they are down to 10 refs for the next couple of rounds. I wouldn't expect the four who have been stood down to get many more ref appointments for the top teams, either.